add files

Plugin.php

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+<?php
+if (!defined('__TYPECHO_ROOT_DIR__')) exit;
+
+/**
+ * Typecho缓存插件
+ *
+ * @package TpCache
+ * @author 老高
+ * @version 0.1
+ * @link http://www.phpgao.com
+ */
+class TpCache_Plugin implements Typecho_Plugin_Interface
+{
+    public static $cache = null;
+    public static $html = null;
+    public static $key = null;
+
+    public static function activate()
+    {
+        Typecho_Plugin::factory('index.php')->begin = array('TpCache_Plugin', 'C');
+        Typecho_Plugin::factory('index.php')->end = array('TpCache_Plugin', 'S');
+        return '插件安装成功,请设置需要缓存的页面';
+    }
+
+    /**
+     * 禁用插件方法,如果禁用失败,直接抛出异常
+     *
+     * @static
+     * @access public
+     * @throws Typecho_Plugin_Exception
+     */
+    public static function deactivate()
+    {
+    }
+
+    /**
+     * 获取插件配置面板
+     *
+     * @access public
+     * @param Typecho_Widget_Helper_Form $form 配置面板
+     * @return void
+     */
+    public static function config(Typecho_Widget_Helper_Form $form)
+    {
+
+        $list = array(
+            'index' => '首页',
+            'archive' => '归档',
+            'post' => '文章',
+            'attachment' => '附件',
+            'category' => '分类',
+            'tag' => '标签',
+            'author' => '作者',
+            'search' => '搜索',
+            'feed' => 'feed',
+            'page' => '页面',
+        );
+
+        $element = new Typecho_Widget_Helper_Form_Element_Checkbox('cache_page', $list, array('index', 'post'), '需要缓存的页面');
+        $form->addInput($element);
+
+        $list = array(
+            'memcache' => 'Memcache',
+            'redis' => 'Redis',
+            'file' => '文件'
+        );
+
+        $element = new Typecho_Widget_Helper_Form_Element_Radio('cache_driver', $list, 'memcache', '缓存驱动');
+        $form->addInput($element);
+
+        $element = new Typecho_Widget_Helper_Form_Element_Text('host', null, '127.0.0.1', '主机地址', '主机地址你懂不');
+        $form->addInput($element);
+
+        $element = new Typecho_Widget_Helper_Form_Element_Text('port', null, '11211', '端口号', '端口号你懂不');
+        $form->addInput($element);
+
+        $list = array('关闭', '开启');
+
+        $element = new Typecho_Widget_Helper_Form_Element_Radio('is_debug', $list, 1, '是否开启debug');
+        $form->addInput($element);
+    }
+
+    /**
+     * 个人用户的配置面板
+     *
+     * @access public
+     * @param Typecho_Widget_Helper_Form $form
+     * @return void
+     */
+    public static function personalConfig(Typecho_Widget_Helper_Form $form)
+    {
+    }
+
+    /**
+     * 缓存前置操作
+     */
+    public static function C()
+    {
+        self::$key = self::needCache();
+
+        //key非null则需要缓存
+        if (!is_null(self::$key)) {
+            try {
+                self::$cache = self::getCache();
+                $data = self::$cache->get(self::$key);
+                if ($data !== false) {
+                    $data = unserialize($data);
+
+                    //如果超时
+                    if ($data['c_time'] + 4 < time()) {
+                        if(Helper::options()->plugin('TpCache')->is_debug) echo "Expired!\n";
+                        $data['c_time'] = $data['c_time'] + 1;
+                        self::$cache->set(self::$key, serialize($data));
+                        self::$html = '';
+                    } else {
+                        if(Helper::options()->plugin('TpCache')->is_debug) echo "Hit!\n";
+                        if ($data['html']) echo $data['html'];
+                        die;
+                    }
+                }
+            } catch (Exception $e) {
+                echo $e->getMessage();
+            }
+        }
+    }
+
+    /**
+     * 从驱动中获取缓存
+     * @return null
+     * @throws Typecho_Plugin_Exception
+     */
+    public static function getCache()
+    {
+        if (is_null(self::$cache)) {
+            $init_options = Helper::options()->plugin('TpCache');
+            $driver_name = $init_options->cache_driver;
+            $class_name = "typecho_$driver_name";
+            $filename = "driver/$driver_name.class.php";
+            require_once 'cache.interface.php';
+            require_once $filename;
+            self::$cache = $class_name::getInstance($init_options);
+        }
+        return self::$cache;
+    }
+
+    /**
+     * 缓存后置操作
+     */
+    public static function S()
+    {
+        //若self::$key不为空，则使用缓存
+        if (!is_null(self::$key)) {
+            $html = ob_get_contents();
+            if(!empty($html)){
+                $data = array();
+                $data['html'] = $html;
+                $data['c_time'] = time();
+                //更新缓存
+                if(Helper::options()->plugin('TpCache')->is_debug) echo "Cache updated!\n";
+                self::$cache->set(self::$key, serialize($data));
+            }
+        }
+    }
+
+
+    /**
+     * 根据配置判断是否需要缓存
+     * @return null|string 后置操作缓存的判断依据
+     * @throws Typecho_Plugin_Exception
+     */
+    public static function needCache()
+    {
+
+        /** 获取PATHINFO */
+        $req = new Typecho_Request();
+        $pathInfo = $req->getPathInfo();
+        //var_dump($_SERVER);
+
+        $option = Helper::options();
+        $_routingTable = $option->routingTable;
+
+        $exclude = array('_year', '_month', '_day', '_page');
+
+        foreach ($_routingTable[0] as $key => $route) {
+            if ($route['widget'] != 'Widget_Archive') continue;
+
+            if (preg_match($route['regx'], $pathInfo, $matches)) {
+                $key = str_replace($exclude, '', str_replace($exclude, '', $key));
+
+                if (in_array($key, $option->plugin('TpCache')->cache_page)) {
+                    if(Helper::options()->plugin('TpCache')->is_debug) echo "This page needs to be cached!\n";
+                    return md5($pathInfo);
+                }
+            }
+        }
+
+        return null;
+    }
+
+
+}

README.md

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+# TpCache
+ A typecho plugin for cache
+
+## 功能
+
+减缓网站并发压力而开发的缓存插件。
+
+## 注意
+
+1. 测试版，不稳定
+1. 目前仅支持memcache，后续会有更多驱动支持，如数据库、redis、文件缓存。
+1. 非js方式的访问统计插件会失效
+1. BUG请在[缓存插件TpCache for Typecho][1]页汇报
+
+## 使用
+
+请配置好memcache和php的memcached扩展
+
+## 安装
+
+请将文件夹**重命名**为TpCache。再拷贝至`usr/plugins/下`
+
+
+## 升级
+
+请先**禁用此插件**后再升级，很多莫名其妙的问题都是因为没有先禁用而直接升级导致的！
+
+
+  [1]: http://www.phpgao.com/tpcache_for_typecho.html

cache.interface.php

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+<?php
+
+
+interface TpCache
+{
+    //初始化
+    public function init($option);
+
+    //添加缓存
+    public function add($key, $value);
+
+    //删除缓存
+    public function del($key);
+
+    //设置缓存
+    public function set($key, $value);
+
+    //获取缓存
+    public function get($key);
+}

driver/memcache.class.php

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+<?php
+
+class typecho_memcache implements TpCache{
+
+    private static $_instance = null;
+    private $mc = null;
+    private $host = '127.0.0.1';
+    private $port = 11211;
+
+    private function __construct($option=null) {
+        $this->host = $option->host;
+        $this->port = $option->port;
+        $this->init($option);
+    }
+
+    static public function getInstance($option) {
+        if (is_null ( self::$_instance ) || isset ( self::$_instance )) {
+            self::$_instance = new self($option);
+        }
+        return self::$_instance;
+    }
+
+    public function init($option)
+    {
+        $this->mc = memcache_connect($this->host, $this->port);
+    }
+
+    public function add($key, $value)
+    {
+        return $this->mc->add($key, $value);
+    }
+
+    public function del($key)
+    {
+        return $this->mc->del($key);
+    }
+
+    public function set($key, $value)
+    {
+        return $this->mc->set($key, $value);
+    }
+
+    public function get($key)
+    {
+        return $this->mc->get($key);
+    }
+
+}